Ruby-throated Hummingbirds are able to fly across the Golf of Mexico, a distance of 500 miles, in one 20-hour non-stop flight. This requires more calories than the bird’s weight, so they prepare by doubling their fat mass. They expend the entire caloric reserve during the flight.

Ruby-throated hummingbird The ruby-throated hummingbird (Archilochus colubris) is a species of hummingbird that generally spends the winter in Central America, Mexico, and Florida, and migrates to Canada and other parts of Eastern North America for the summer to breed. It is by far the most common hummingbird seen east of the Mississippi River in North …

Ruby-throated Hummingbirds are able to fly across the Golf of Mexico, a distance of 500 miles, in one 20-hour non-stop flight. This requires more calories than the bird’s weight, so they prepare by doubling their fat mass. They expend the entire caloric reserve during the flight. Read More »